This April 24, 2005 file photo shows Pope Benedict XVI opening his arms as he celebrates his installment Mass in St. Peter's Square, at the Vatican.

Written by

Gary Strauss
USA TODAY

Despite his advanced age and limited public appearances, Pope Benedict XVI's resignation was a surprise to most Roman Catholics, followers say.

While the Vatican stressed that no specific medical condition prompted the 85-year-old Benedict's decision to become the first pontiff to resign in 600 years, many Catholics speculated about that he might be facing some tough health issues.

Others expressed concerns about the future of the church, his potential successor and his role in the Vatican's handling of child sexual abuse scandals involving priests. ...